/Engine/Plugins/Runtime/XRBase/Source/XRBase/Public/HeadMountedDisplayFunctionLibrary.h
Breaks an XR key apart into the interaction profile, handedness, motion source, indentifier and component.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintPure, Category="Input|XRTracking", Meta=(NativeBreakFunc)) static void BreakKey ( [FKey](API\Runtime\InputCore\FKey) InKey, [FString](API\Runtime\Core\Containers\FString) & InteractionProfile, EControllerHand & Hand, [FName](API\Runtime\Core\UObject\FName) & MotionSource, [FString](API\Runtime\Core\Containers\FString) & Indentifier, [FString](API\Runtime\Core\Containers\FString) & Component )